Stripping-spear for paper-rolls.



A. T. WYANT.

STRIPPING SPEAB. FOR PAPER ROLLS.

APPLICATION FILED MAR.12, 1913.

1,084,998. Patented Jan. 20, 1914.

ALFRED T. WYANT, or ROCHESTER, NEW YORK.

STRIPPING-SPEAR FOR PAPER-ROLLS.

Specification of Letters Patent.

Patented Jan. 20, 1914.

Application filed March 12, 1913. Serial No. 753,711.

To all whom it may concern:

Be it known that I, ALFRED T. WYANT, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Strippmg- Spears for Paper-Rolls; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

My present invention relates to stripping devices for web carrying rolls and it has for its object to provide means of this nature more particularly adapted for the web drying rolls of paper machines and similar apparatus whereby portions of the Web adhering to the roll or which for other reasons it is desired to remove, may be quickly stripped off in a simple manner and with little effort and with safety both to the operator and to the apparatus.

To these and other ends the invention consists in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at. the end of the specification.

In the drawings: Figure 1 is an elevation of a group of paper drying rolls in connection with which a stripping spear constructed in accordance with and illustrating one embodiment of my invent-ion is illustrated in end View; Fig. 2 is an enlarged vertical section taken substantially on the line 2-2 of Fig. 1; Fig. 3 is an enlarged end view of a support for the spear, and Fig. 4 is an enlarged section taken substantially on line H of Fig. 2.

Similar reference numerals throughout the several figures indicate the same parts.

While it is obvious that my improvements are suitable for use in connection with apparatus of a kindred nature, I have shown and will describe it as applied to the dryin rolls, of a paper making machine and re erring more particularly to the drawings, 1, 2 and 3 indicate a group of adjacent revolving rolls or heated drums of a train of rolls through which the fiber web is run on the apron 4 and with the aid of guiding rolls, one of which is indicated at 5, but the particular mode of carrying the paper is not important to this invention and need not be further described.

Sometimes the continuous Web during its passage through the roll becomes broken and detached pieces Wind themselves about certain of the rolls after the body of the web has been re-threaded into the bite of the carriers and cause to proceed and these detached pieces must be removed as quickly as possible. It has hitherto been a common practice to take a plain iron bar called a spear and to scrape the adhering web from the roll in an endwise direction while standing at one end of the latter and then gathering or balling up the fragment and drawing or pushing it out, but in this process both hands are required for the manipulation of the bar which is otherwise unsupported and the gathering up of the paper must necessarily follow the actual stripping operation. The weight of a bar of the length required is considerable, paper rolls, particularly, being often 200 inches long, and as there is nothingto steady it, its movements are necessarily cun'ib'ersome with an obvious risk of its getting beyond the control of the operator and fouled in the mechanism of the machine whereby the aprons, particularly, are apt to become damaged.

In the practice of my present invention, I provide a stripping spear so guided and supported that its manipulations are confined to effective movements and the operator need use but one hand, if necessary, to bring them about. To these ends, I provide brackets 6 located slightly beyond the respective ends of the rolls that may be rigidly mounted at convenient points on the general frame work 7 supporting the bearings of the rolls. Rotatably mounted in journals 8 in these brackets but suitably prevented from endwise movement, is a split tube 9, the slot 10 of which extends substantially throughout its length. This tube forms a guide and support for the spear 11 that comprises, in the present instance. a handle portion 12 permanently projecting from one end of the tube and a laterally turned point or spur 13 that projects through the slot- 10. The spur is of a reduced size relatively to the shank of the spear so that it slides freely in the slot, though the latter is narrow enough to prevent the shank from passing through it, and the said spur normally hangs in the position shown in Figs. 1 and 2 in which it is clear of the end of the adjacent roll 1. It will be observed, therefore, that to bring the spur or point to a given position on and against the periphery of the roll 1, for instance, it is necessary only to tilt it to a neutral position by a rotary movement of the spear 11, the guiding tube 9 turning freely with it, and to then draw it along as faras desired by the endwise movement of the spear followed by another rotary movement that carries the spur into contact. When the stripping operation is completed, the spur may be returned to its former position and remain there during the operation of the machine.

It will be seen that the implement is rigidly held in all of its positions during manipulation, the only effort on the part of the operator being expended in drawing the weight of the spear during its longitudinal movement and in holding it against the roll upon its rotary movement, the latter operation being easy to effect as the weight of the spur 13 itself is in most cases sufficient to hold it against the roll and there is no chance for the device to get beyond the easy control of the user and into positions in which it might do damage.

The supporting tube 9 has been shown symn'ietrically arranged with respect to the group of rolls illustrated, that is, at a point intermediate their peripheries and, in the present instance, at a point equi-distant from all so that the spear may be used against any of the three rolls, selectively, with equal effect. Of course, one such device as that described can be provided in connection with each group of rolls similar to that shown throughout the series that is comprised in the usual make-up of a paper web machine.

I claim as my invention:

1. The combination with a frame and a web carrying rou supported thereby, of a stripping spear permanently carried by the frame having a point movable into and out of engagement with the periphery of the roll and a rigid guiding and supporting member for the spear permitting the aforesaid movement of the latter and also a movement thereof between different points on the periphery of the roll in a direction longitudinally of the latter.

The COHlbllltltlOIl with a frame and a web carrying roll supported thereby, of a stripping spear permanently carried by the frame provided with a roll engaging point and a rigid guiding and supporting member for the spear, the latter being rotatably movable to bring its point into and out of engagement with the roll and lon itudinally movable to bring the point to difierent positions on the periphery of the roll.

3. The combination with a Web carrying roll, and a rigid supporting and guiding member extending parallel wlth the periphery thereof, of a stripping spear held by the guiding member and comprising a laterally progecting point, said point being movable into and out of contact With the roll by a rotary movement of the spear and positioned along the periphery thereof by the longitudinal movement of the spear.

4. The combination with aweb carrying roll and a slotted tubular guide rigidly supported to extend parallel with the roll, of

a stripping spear arranged within the tube and provided with a laterally projecting point extending through the slot, said point being movable into and out of contact with the roll by a rotary movement of the spear and positioned along the periphery thereof by a longitudinal movement of the spear within the tube.

5. The combination with a web carrying roll and rigid bearings arranged in parallelism therewith, of a slotted tubular guide rotatable in the bearings and a stripping spear arranged Within the tube and provided with a laterally turned point projecting through the slot in the tube, said point being movable into and out of contact with the roll by a rotary movement of the spear and sleeve and positioned along the periphcry of the roll by a longitudinal movement of the spear within the sleeve.

6. The combination with a plurality of Web carrying rolls having parallel axes and a rigid guiding and supporting member arranged at an intermediate point with reference to the peripheries of the rolls, of a stripping spear held by the guiding and supporting member and comprising a later-F y turned point movable by the rotation of the spear into and out of contact with the respective rolls, selectively, and movable with a. longitudinal movement of thespear to dif ferent points on the peripheries of the rolls.

ALFRED T. VVYANT.

Witnesses RUSSELL B. GRIFFITH, H. E. STONEBRAKER. 

